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Dunmore, Montana Weather Forecast
Dunmore, Montana Weather
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Weather Forecast for Dunmore, Montana : Big Horn County
Issued: 4:09 am MST Dec 17, 2025 Latitude: 45.6785885 Longitude: -107.5045265 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
60% chance of rain on Today Cloudy on Tonight Increasing Clouds on Thursday 80% chance of rain & snow on Friday 30% chance of snow on Saturday Partly Sunny on Sunday 20% chance of rain on Monday Partly Sunny on Tuesday
High: 56°F Low: 21°F High: 40°F High: 55°F High: 41°F High: 41°F High: 45°F High: 43°F
Low: 31 °F Low: 24°F Low: 21°F Low: 25°F Low: 26°F  
Rain Cloudy Increasing Clouds Rain & Snow Snow Partly Sunny Rain Partly Sunny
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Current Conditions at
BILLINGS - (KBIL)
50°
Feels like 44°F
Mostly Cloudy
as of 5:53 AM MST
Rel. Humidity: 43%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.41 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 30 MPH
240° Southwest
Cloud Level(s): Few at 10000ft, Broken at 20000ft
Current Conditions at
SHERIDAN - (KSHR)
50°
Clear
as of 5:53 AM MST
Rel. Humidity: 31%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.48 in.
Flight Rule: VFR
Wind Data
7 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
SOUTH BIG HORN - (KGEY)
43°
Clear
as of 5:53 AM MST
Rel. Humidity: 48%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.60 in.
Flight Rule: VFR
Wind Data
8 MPH
210° Southwest
Cloud Level(s): Clear
Current Conditions at
MILES CITY - (KMLS)
36°
Feels like 26°F
Clear
as of 5:53 AM MST
Rel. Humidity: 80%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.43 in.
Flight Rule: VFR
Wind Data
15 MPH
160° South
Cloud Level(s): Clear
60% chance of rain Today Today... Showers likely, mainly between noon and 2pm. Cloudy through mid morning, then gradual clearing, with a high near 56. South southeast wind 14 to 24 mph becoming west northwest 30 to 40 mph. Winds could gust as high as 55 mph. Chance of precipitation is 60%.

Cloudy on Tonight Tonight... Partly cloudy, with a low around 21. West northwest wind 31 to 41 mph decreasing to 21 to 31 mph after midnight. Winds could gust as high as 60 mph.

Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 40. West wind 6 to 9 mph becoming south in the afternoon.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a temperature falling to near 31 by 9pm, then rising to around 43 during the remainder of the night. South southwest wind 8 to 16 mph.

80% chance of rain & snow Friday Friday... A chance of rain before 2pm, then rain, possibly mixed with snow. High near 55. Southwest wind 13 to 18 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

80% chance of rain & snow Friday Night Friday Night... Rain and snow, becoming all snow after 8pm. Low around 24. Northwest wind 6 to 9 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

30% chance of snow Saturday Saturday... A 30 percent chance of snow, mainly before 11am. Partly sunny, with a high near 41. West wind 6 to 8 mph. Little or no snow accumulation expected.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 21. West wind around 7 mph becoming south in the evening.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 41. South southeast wind around 6 mph.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 25. South southeast wind around 5 mph.

20% chance of rain Monday Monday... A 20 percent chance of rain. Partly sunny, with a high near 45. South wind 5 to 7 mph becoming north northwest in the afternoon.

20% chance of rain & snow Monday Night Monday Night... A slight chance of rain and snow. Mostly cloudy, with a low around 26. North wind around 6 mph becoming south southwest in the evening. Chance of precipitation is 20%.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 43. Southeast wind 3 to 5 mph.

Current Radar Image


Sun Almanac for Dunmore, Montana
Sunrise: 07:46 AM
Sunset: 4:27 PM
Civil Sunrise:07:11 AM
Civil Sunset: 5:01 PM
Nautical Sunrise: 06:34 AM
Nautical Sunset: 5:39 PM
Astro Sunrise: 05:57 AM
Astro Sunset: 6:15 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.